---
title: "Will Anthropic or OpenAI IPO first?"
canonical_url: https://betcrypto.now/events/will-anthropic-or-openai-ipo-first
status: live
trading_closes_at: 2028-01-01T04:59:00+00:00
total_volume_usd: 422330.68
venues: ["Polymarket"]
categories: ["Markets", "Tech & Science"]
prices_as_of: 2026-10-09T12:01:12+00:00
publisher: BetCrypto
data_api: https://betcrypto.now/api/v1/events/will-anthropic-or-openai-ipo-first
---

# Will Anthropic or OpenAI IPO first?

Live · $422,331 traded · listed on Polymarket

## About

This market will resolve to "Anthropic" if Anthropic completes an Initial Public Offering (IPO) before OpenAI completes an IPO by December 31, 2027, 11:59 PM ET, as confirmed by official company announcements and credible news sources. 

This market will resolve to "OpenAI" if OpenAI completes an Initial Public Offering (IPO) before Anthropic completes an IPO by December 31, 2027, 11:59 PM ET, as confirmed by official company announcements and credible news sources. 

This market will resolve 50-50 if:
- Neither company completes an Initial Public Offering (IPO) by December 31, 2027, 11:59 PM ET;
- Both companies complete an IPO on the same calendar date (ET); or
- By December 31, 2027, 11:59 PM ET, both companies become unable to complete an IPO, including due to acquisition, merger, or absorption by an entity that is already publicly traded.

The IPO refers to the first sale of stock by the listed company to the public on any recognized stock exchange.

The resolution source for this market is a consensus of credible reporting.

_From Polymarket's listing._

## Main market

| Outcome | Probability | Cheapest | Polymarket |
|---|---|---|---|
| Yes | 96% | 96¢ on Polymarket | 96¢ |
| No | 4% | 4.4¢ on Polymarket | 4.4¢ |

## Open on a venue

- [Polymarket](https://betcrypto.now/go/e/5324?via=md)

---

Probability is the cross-venue consensus (book midpoints, 0–100%). Venue columns are what buying costs there (the ask). Prices move constantly; re-check at the canonical URL or https://betcrypto.now/api/v1/events/will-anthropic-or-openai-ipo-first.

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